package com.thinkwide.data.security;

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

public class MFSecurityBase implements IMFSecurity {

    public String DefaultKey = "12345678";

    public static byte[] parseHexStr2Byte(String hexStr) {
        if (hexStr.length() < 1)
            return null;
        byte[] result = new byte[hexStr.length() / 2];
        for (int i = 0; i < hexStr.length() / 2; i++) {
            int high = Integer.parseInt(hexStr.substring(i * 2, i * 2 + 1), 16);
            int low = Integer.parseInt(hexStr.substring(i * 2 + 1, i * 2 + 2), 16);
            result[i] = (byte) (high * 16 + low);
        }
        return result;
    }

    public static String parseByte2HexStr(byte buf[]) {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < buf.length; i++) {
            String hex = Integer.toHexString(buf[i] & 0xFF);
            if (hex.length() == 1) {
                hex = '0' + hex;
            }
            sb.append(hex.toUpperCase());
        }
        return sb.toString();
    }

    public String encryptString(String content) throws Exception {
        return encryptString(content, this.DefaultKey);
    }

    public String decryptString(String content) throws Exception {
        return decryptString(content, this.DefaultKey);
    }


    public String encryptString(String content, String password) throws Exception {
        byte[] byteContent = content.getBytes("utf-8");
        byte[] result = encrypt(byteContent, password);
        return parseByte2HexStr(result);
    }

    public String decryptString(String content, String password) throws Exception {
        byte[] byteContent = parseHexStr2Byte(content);

        byte[] result = decrypt(byteContent, password);
        return new String(result, "utf-8");
    }

    public String encryptBase64(String content, String password) throws Exception {
        byte[] byteContent = content.getBytes("utf-8");
        byte[] result = encrypt(byteContent, password);
        return new BASE64Encoder().encode(result);
    }

    public String decryptBase64(String content, String password) throws Exception {
        byte[] byteContent = new BASE64Decoder().decodeBuffer(content);

        byte[] result = decrypt(byteContent, password);
        return new String(result, "utf-8");
    }


    public byte[] encrypt(byte[] byteContent, String password) throws Exception {
        return null;
    }


    public byte[] decrypt(byte[] byteContent, String password) throws Exception {
        return null;
    }


}
